package com.jiaeda.springsecurity.controller;

import com.jiaeda.springsecurity.properties.SecurityProperties;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpStatus;
import org.springframework.security.web.DefaultRedirectStrategy;
import org.springframework.security.web.RedirectStrategy;
import org.springframework.security.web.savedrequest.HttpSessionRequestCache;
import org.springframework.security.web.savedrequest.RequestCache;
import org.springframework.security.web.savedrequest.SavedRequest;
import org.springframework.util.StringUtils;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseStatus;
import org.springframework.web.bind.annotation.RestController;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

/**
 * Created by chengchaopeng on 2018/7/9.
 */
@RestController
@RequestMapping("/authentication")
public class BrowserSecurityController {

    private Logger logger = LoggerFactory.getLogger(getClass());

    private RedirectStrategy redirectStrategy = new DefaultRedirectStrategy();

    @Autowired
    private SecurityProperties securityProperties;

    /**
     * 当需要身份认证时，跳转到这里
     *
     * @param request
     * @param response
     * @return
     */
    @GetMapping("/require")
    @ResponseStatus(code = HttpStatus.UNAUTHORIZED)
    public SimpleResponse requireAuthentication(HttpServletRequest request, HttpServletResponse response)
            throws IOException {

//        转跳到用户登录页面
        logger.info("跳转到登录页面："+ securityProperties.getBrowser().getLoginPage());
//        这里可以添加跳转判断
        redirectStrategy.sendRedirect(request, response, securityProperties.getBrowser().getLoginPage());

        return new SimpleResponse("访问的服务需要身份认证，请引导用户到登录页");
    }
}
